Carbureter.



No. 860,522. PATENTED JULY 16, 1907. W. BROWN.

GARBURETER.

APPLIoATIoN FILED JULY14, 190e.

" MHINESSES; /NVENTUH l A Ey PATENT oEEIcE.

WILLIAM BROWN, OF VANCOUVER, BRITISH COLUMBIA, CANADA.

CAREURETER.

To all whom it 'may concern:

Be it known that I, WrLLIAM BROWN, a citizen ofthe Dominion ofCanada, residing at the city of Vancouver, in the Province of British Columbia, Canada, have invented a new and useful Improvement in Carbureters, of which the following is a specification.

This invention relates to a carb ureter designed for the generation of av hydro-carbon gas from any of the light hydro-carbon oils, and belongs to that class wherein atmospheric air is passed through a hydro-carbon oil.

My improvements have been directed tothe means whereby the air is brought into contact with the hydrocarbon oil under conditions which are favorable to the Vrapid generation of the gas and further to various details of construction by whichthe device is simplified and rendered safe; there are also various other novel features in my device to which attention is called in ythe following specification, reference being made to the `'drawings by which it is accompanied, Figure 1 being a vertical axial section through the carburetor and its connected parts, and Fig.- 2 a detail of the lower part of the air discharge into the carbureter.

The carbureter proper consists of a relatively small cylindrical casing 2 having'a closed lower end within which casing fits a thin flat close pitched spiral/3 on a central tubular stem 4. This spiral 3 extends below the end of the tubular stem 4 so that air passing down the tube mayl freely enter from the lower end of the tube into thex spiral passage `between the tube 4 and the casing 2. The lower end f this spiral passage 6 is closed by a gauze screen 5 and is filled with cotton waste or other similar fibrous material. The spiral 3 is retained within the casing by screws or pins 7 so that it may be removed therefrom when required for Cleaning or recharging with the fibrous material.

The tubula'r stem 4 of the spiral projects at the upper end beyond the casing 2 and into it is threaded a pipe 8 through which air is delivered to the carbureter. The casing 2 with its inclosed spiral 3 is introduced into a cylindrical well l0 in the bottom 11 of an oil .tank 12, the bottom 11 being sloped towards the center f as shown in the drawing so as to drain the oil toward the well.

An upwardly convex gauze screen 9 'is secured to the pipe 8, or appropriately in the joint between the pipe 8 and the tubular stem 4-of` the spiral, the outer edgevof which screen extends beyond the well 10 and rests upon 4the bottom 11 of the tank.

The air pipe 8` extends upward through a gland packing in a removable cover 13 in the'closed upper end of the tank 12, the opening which the cover 13 closes being of such size as will permit of the casing 2 with its gauze screen 9 being readily entered or withdrawn therethrough when required for cleaning or recharging with the fibrous material. y

Specification of Letters Patent.

Application filed July 14,1906- Serial No. 326.247.

Patented July 16, 1907.

'The cover 13 is chambered upward toward the gland round' the pipe 7 as at 14, anda. pipe connection 15 is taken from it to conv'ey the generated gas to the engine or other service.

lThe foregoingfdescriptionV embodies the essential features of the carburetor which consist of the means whereby the air. is delivered upward through a spiral passage charged with a fibrous material which fibrous material is maintained in a saturated condition with the hydro-carbon oil by immersion of the charged spiral in the well at the bottom of the reservoir tank, and in the upwardly convex gauze screen 9 which collects and dis- ,tributes the gas as it emerges iromthe spiral passage and avoids the bubbling noise common incarbureters of the class where rapid generation is called fpr. 'The carbureter however, althoughapplicable to other purposes has been particularly designed for use with an internal combustion engine and the air will be drawn through the carbureter by the suction of the piston which'flls the cylinder with the explosive charge.

To avoid the pulsation of the engine affecting the carbureter, I introduce into the pipe 15 which connects the carburetery with the engine an elongated chamber l 16 in the ends of which where the pipes are connected I provide a bushing or nipple having a series of fine perforations 17 through which the gas must pass, which series of perforations is intended to preclude the possibility of back-firing passing to the chamber 16 and from there to the reserve of gas in the upper part of the carbureter tank 12. y

Next to the chamber 16 is a check valve 18 which will permit gas to pass toward the engine in the direction of the arrow but will check its return; and beyond this check valve is an air suction valve 19 which will admit atmospheric air to the pipe 15, the valve 191being opened by the pulsation of the engine and the amount of air admitted regulated by a nut 20 compressing the `light spring 21.

In the operation of the device the tank 12 is filled with hydro-carbon oil through the plug 22 and saturates the brous material in the spiral passage 6. Air is either forced or drawn down the air pipe 8 and passing. out at the lower end of the tubular stem 4 enters through the screen 5 into the spiral passage 6 and passes upward through the fibrous charge to collect and be discharged through the gauze screen 9 into the liquid hydro-carbon oil in the tank l2. The upper part of the tank 12 forms a. storage reservoir from which the gas is withdrawn as required through the chamber-ing 14 and' the pipe 15. Passing through the elongated chainber 1G and check valve 18, it derives the required amount of atmospheric air through the valve 19 which maybe adjusted to give the required explosive mixture.

Having now particularly described my invention and the manner of its application and use, I hereby detected in by Letters Patent, is:

clare that what lcla'nn vas new and desire to be pfo-` 1.As a means fogeneratng a hydro-carbon gas, a closed tank having a relativelyv small cylindrical well in the bottom, a. casing adapted to tit the cylindrical` well which casing has a spiral passage charged with fibrousmaterial, means for delivering air to the lower. end of the spiral passage, and means for delivering the generated gas from the upper part of the tank. A

2. As a means for generating a hydrocarbon gas, a

closed tank having in its bottom a cylindrical well, a cas.. ing adapted to fit the cylindrical well in the bottom ofv the tank, a spiral passage in such casing .charged withan absorbent material, an air pipe passing downward throughr the tank and delivering Within the casing at the lower end of the spiral passage, a, ganze Screen upwardly convex over the top ot the well and its' inclosed casing, and

' means for delivering-t1ie generated` gas from tilev upper part of the oil tank.

3. As aA meansr for generating hydro-carbon gas, a

clase@ ou tank' having @relatively Smau eyunarical well in the bottom, a casing adapted to fit the cylindrical Well,

ra thin flattened spiral within the casing forming'a spiral passage from top to bottom of it, a gauze screen across the lower end of the spiral passage, a central air pipe fpassing downward through the oil tank and delivering at the lower end of the spiralpassage in the casing, an upwardly convex'- gauze screen secured to the air pipe andv slsrecieationl in the presence of two subscribing witnesses."

l WILLIAM BROWN. 'Witnesses: l RowLAND BRt'rTArN, ROBERT G. BROWN. 

